鎖相環(huán)脈沖響應(yīng)函數(shù)的測量和分析
THE MEASUREMENT AND ANALYSIS OF THE IMPULSE RESPONSE FUNCTION OF A PHASE LOCKED LOOP
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摘要: 本文基于實際存在的M序列的自相關(guān)函數(shù),得到了用相關(guān)法求系統(tǒng)脈沖響應(yīng)函數(shù)的基本公式。討論了測量鎖相環(huán)脈沖響應(yīng)函數(shù)的方法,并給出了測量所用主要部件的數(shù)學(xué)模型。最后對實測曲線作了頻譜分析。
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關(guān)鍵詞:
Abstract: Based on actual M-sequence autocorrelation function, this paper has formulated the system impulse response function with the method of correlation, given a discussion for the measurement of impulse response function of phase locked loop, derived the mathematical models for major components, with which the measurement was taken,and finally, analysed the frequency spectra for curves actually measured. -
W. D. T. Davies著,孫柏林等譯,自適應(yīng)控制的系統(tǒng)識別,津儀譯叢,2(1974), 49.[2]謝高覺,雷達(dá)測量技術(shù),2(1975), 6.[4]蔣君章,無線電技術(shù)通訊,2(1973),44.[5]蔣君章,無線電技術(shù)通訊,2(1973) 28.[6]J. S. Bendat and A. G. Piersol著,凌福根譯,隨機(jī)數(shù)據(jù)分析方法,國防工業(yè)出版社,1976, 295頁.[8]E. O.Brigham著,柳群譯,快速傅里葉變換,上?？茖W(xué)技術(shù)出版社,1979,199頁. -
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